Table 8: Main experimental/calculated parameters characterizing loads on BC and boxes.

No.ParameterTest(a)
Test 4
LB LOCA
Test 5
LB LOCA
Test 1
LB LOCA
Test 7
MSLB
Test 9
MSLB
Test 12
SB LOCA

(1)Maximum absolute pressurein box , (MPa)0.2020.2140.1970.18350.1750.111
0.2240.2320.2040.1850.1790.118
(2)Maximum absolute pressure in gasroom , (MPa)0.1910.1990.1940.1770.1690.107
0.2060.2100.1950.1800.1730.110
(3)Maximum absolute pressure in air trap , (MPa)0.1930.2000.1910.1770.1680.106
0.1910.1960.1930.1800.1740.113
(4)Maximum pressure difference across BC, (kPa)14.5515.7311.627.87.74.9
16.917.413.96.5 (b)6.7 (b)5.5
(5)Maximum pressure difference across check valve, (kPa)50.654.337.813.610.91.3
64.867.255.918.115.71.6
(6)Maximum temperature in box , (°C)12012212011811886
124125121172181101
(7)Maximum temperature of BC water(c), ( )787860566338.5
777864525335
(8)Average temperature of BC water(d), (°C)615945485236
777864525335

(a)Experimental results are presented in upper part, calculation ones—in the lower part of table’s cells;
(b)calculated values are the first peaks; due to COCOSYS model specifics only first pressure difference peak is reproduced in calculations;
(c)calculated values of maximum temperature are obtained at the end of calculation: for Test 4, Test 5, and Test 1 values are given at 100 s, for Test 7, Test 9, and Test 12—at 1800 s. Experimental values of maximum temperature are observed for Test 4 during interval ~55–230 s, for Test 5 during interval ~45–85 s, for Test 1 during interval ~160–250 s, for Test 7 during interval ~800–1800 s, for Test 9 during interval ~1100–1800 s, and for Test 12 during interval ~2700–5000 s;
(d)for Test 4, Test 5, and Test 1 values are given at 100 s, for Test 7, Test 9, and Test 12—at 1800 s. Calculated maximum and average temperatures of BC water are equal to each other due to using of only one node for BC pool in calculation.